When compiling the test with `gcc -std=c11 -fsyntax-only`
runnable/test22513.c:18:28: error: field ‘t’ has incomplete type
18 | struct S { int a; struct T t; };
| ^
Original test:
```
struct S { int a; struct T t; };
struct T { int b; int x; };
```
Comment #1 by bugzilla — 2023-02-20T07:30:21Z
forward references allowed in ImportC
Comment #2 by ibuclaw — 2023-02-20T12:40:13Z
*** This issue has been marked as a duplicate of issue 23697 ***